6633628257 has 8 divisors (see below), whose sum is σ = 8846208000. Its totient is φ = 4421733680.

The previous prime is 6633628249. The next prime is 6633628271. The reversal of 6633628257 is 7528263366.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6633628257 - 2³ = 6633628249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6633628297) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148257 + ... + 187742.

It is an arithmetic number, because the mean of its divisors is an integer number (1105776000).

Almost surely, 2^6633628257 is an apocalyptic number.

It is an amenable number.

6633628257 is a deficient number, since it is larger than the sum of its proper divisors (2212579743).

6633628257 is a wasteful number, since it uses less digits than its factorization.

6633628257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342583.

The product of its digits is 2177280, while the sum is 48.

The square root of 6633628257 is about 81447.0886956679. The cubic root of 6633628257 is about 1878.9578743158.

The spelling of 6633628257 in words is "six billion, six hundred thirty-three million, six hundred twenty-eight thousand, two hundred fifty-seven".